airman



B. 8.'A1KMAN-- I PUMP AND PUMPING SYSTEM.

APPLICATION FIED DEC.1.I9I9.

` Reiss'ucd Aug.: 24, 1920.

lllfizamdikmwv B. S. AIKMAN.

PUMP AND' PUMPING SYSTEM.

APPucATloN HLED DEc.1.1919,

3 SHEETS-SHEET 2.

Reissued Aug. 24, 1920.

B. s. AIKMAN. PUMP AND PUMPN SYSTEM. APPLlCATlON FILED DEC. I. 1919.

esued Aug. 24, 1920;

'Vida 8,11 ii (if the system.

a full, clear, (zmusi, ;md Emmi flagcriptin7 refei'imce being" had w the accmpamyng di'zm'ings :frifmzig a pa". 131i 'iliis spcil' lgion. i I My nvantian i'e'in'tes '4:0 pumps ;mil pumping system 51ml wntei'nplzites zm imprfw'ail appzu'afms Wliicli may lie smplyed an islatecl plant for 'furnishi'ngg water to :i msi xlence 01' :m inclusm'iial esizxblislunnt iirnin a lie-21 rby si'mrcfi, Siifil'i :is :i well i lt is the purpDs-fi ui'vmy inv'eiilsicm w pmj i'uv'ecl L3 item i'a'hicli Supplies 'water ii'rsli from the 811, thai willmu't the iutffi'wiif" mi (if a goi' wilk, linii which 'will be Under fii'ei cniiii'oi'J by 'which l. mean izi'ollcd by th l itlizit itli'e lw wf' 'va'zitei' (z nl? opening and Clubu lifflziiieets Winch :iioriii the supply oul i ehh mm the Wll aicl ,sf water undei' :Emi e13 Tu suppl to mainmin Control hm U The lippam-us known aiiil iisefi (lifei'eiices iii px'lesslii'e m' by *fim eleirim'i; devices., find. iso

the .'fuct timi; piifeiimafic nomi'l employefl led 'lfi quent inissopemlins Such as are cuizimunijr 'mili-wl blow-mfer where' the system b'cmnes l'earefl ai! Water and the, comprasssd mi; empljcl :in oprating medium, Wah., i

Faucet ontml of wami" rlelivei'y iii a' sys" tem emplo'ying Single cylinder pump is shown for the fii's' 'time in, my co-pmlng ipplicatiom ,Serial No. llffilerl September 16, 19115.

According 150 my' invention, there is piw vile-cl z), ingjl wat'ei' Chamber alternately subject to airpi'esur'e ;md reli'e'if'cd there* from, the :Lite-ma 10m: being; secured by actuatins of Valve meciizuiisms which, in turn, are directly ,31ml meclmnlcilly clepenl which requires 1111111111 consun'ip'iiori of amd 'Winch og? Vaifcs reliabljx ancl positnfely. The

'last niflilllfiiied chai'lcersic is' ilue* m the direct mlziiun U2 ;the in'ihfe mecllain 'm 'to 'lie water loeies, wA aby 'Mie movemm of the valve is depf-,mlent upon *the physical change Vicle mans for czmsnig smlilei aua'ifins 'vi-lie valve mecl niem iiotwihstmiii ,ci il und. full Gif V 'is'cflmpar Fa'fic'el conli -l of ;i presents {mf'iin problems 12ml; ncoimered in Gpen pumpiiig The Sliieim of Water 'i f iw:- ieii ly. 7 two cylinx'irs ii'hicli the present system iiiuliar pump and mi air ng cli&r f1i:ie.ito .cluirge strois;

i. ;will pt.

iii: air m: UE. 'nfmfielm :min 'mlifes :fiii'e :fill pi'vidmi M08 and sz'gii in Such ;i mali- 7 i iiliivli 'ifiey ima 450 mtaiii mm iza liulri ;them iiigllt upn'tliair A (Yier pmlilein is the milier (if ithlf''wthe 'mw-e iiiechxiiiism fmm zm. i: admissimijto ei L pasitimi 01' vice ln flpen piimu g llm i'ise, and fall of '-waiz* in 13118 pumpq'uite rapid and no paricilar eiimuntez'ecl in sliifting he air (li liiiculy Valves. T111 a fanem miiti'llecl system the iiow 4ai Wami' .may cafae by elo-sing of the fauca'fi just filia 'cri'liczil eralzion a' lzl'ia Walim sliifting moiwc'n has begin); Comequently unless same man is provided foif making the. shif'ing pemtion incleapendenl; of the rate Of Walter diseliarge the pump will eeiitei' and the air' will blow away leaving the syiem cleaclf Som means must be pm` vicleil for' starting *the Valve zaucli ilw'veinant, anal I pr' lilia iii the the

pump Where starting' af the shifting pemunder pressure. and il; is i supply system.

tion ata predetermined stage of operations, such, for instan-z'e, as low level on disrharge or high level on lilliag of th';J pump, and solne means must he provided for insuring' a complete operation or full stroke of the valve Operating :neehan'ism after the shilt ing o Jeration is initiated.

A urther requireinent :is a valve shiiting means .Whieh :shall invariahly have suffioient por. :r to operate the Valve merhanisrn even on high air pressure. As previously explained, Where lho'air Valves are hold to seat hy pressure it is essential that the means for shifting the valves he invari abl`I powerful enougl'i to move the valres regardiess of ihe pressure in the pump. This 1 aoeomplish by the use of aV pressure motor operated by the name fiuid pressure .which tends to hold the valres to seat.

The conjoint use of the valves hold to seat by pressure and the fluid pressure motor for vpulling;r the Valves from seat against pressure as herein disolosed, meets the requirements above outlined, uamely tightnees of the valves, :full strole. and snap operation of the valves and means i'iulependent of the lift for iii\"ai' iahly shifting the valves.

It is also desirahlo that no waslage of air oocurs when the air valves are shifted. l aceoinplish tl's layv making the operations of the air admission and eidiaust` valves overlap so that 'the exhaust ifalx'o is invz'iriahly closed before the admission Y: ve is opened and the admission valve im'ariahly f'losed before the exhaust valve is opened. 'This is a niatterof prior art in open pu'mping hut has not previously been employed in falu'et Controlled systems. lt is of partirular utility in the present. construction in view of the faet that the ralre operating motor re eeives fluid pressure independentiy of the pressure in the i'vhamher so that even if the eomln'essed air is shut oli' from the pumping "harnher it does not ali'ert the applii'ation of pressure to the motor.

My invention ie ilhi trated inthe arronr panvingr drawing's, in which:

Fiflure l is a moreI or less diagranunatie 'rio-.Y iliustrating the? system as a whole;

Fig. E3 is a plan view of the, pump; glfig. is a vertnfal axlal seetional rievf taken on the planie. of the line ;#43 of Fin: 2 and looking in tluedireelion indiraled l'y the arrows;

Fig. 4 is a rertiral. axial sevtional view taken on the plam' of the line -'l---lof Figi. 2 and looking in the dirertion indirated l\' the arrou's; and

Fig. is a sertional view taken on the plane of the line ff of l`i, '.l and looking' in ilu' dire-tion indii'al'ed by the arrows.

leferring first to lfifj. l, whii'h, as`l efr-. stated, is diagrainnsatii'., it u'ill he seen that the well ('urhingl is i'llnstrated at 8, the water level. being iiulirated at '9. he,

pump structure, 'ivhioh have iudii'ated hroadliY by the referenre eharai'ter ll), is disposed in the vwell at a suitable ,distanoe helow the 'ater level, therein, as 'wilhhe :leserihed. The pump structure has l'ezniiin;` therefrmn three pipefz'flan air pressure pipe. ll, an exhaust pipe` 12, and a water dis charge pipe ,li-. i The air pressure, pipe ll ia ronnei'ted with a oonipressed air tankllsl, in which air is compressed 'by means of a ("ompressor 15, operated, for instanee, liy au eloetriel motor lj t willvho rleir to those skilled in the art that the ('.ompressor l 'may he operated by anyv suitable means, such as a fas engine or steam engine, and if desired means may he,.provided 'for automatirally starting and stopping' the prinn', 'mover dependent upon the fall and rise of pressure in the tank ll. ln the pipe ll the rut oil' valve ll, air :itraiuer ll, reduifing valve ll,'ga e ll, and drain Cook ll" are provided. I

The water disrharge, pipel 13 leads to rarious branch pipes lT and HS, each of which in turn, leads to an outlet'fauuet li). ly means of a pipe 24), the disvharge pipe, l` is connected with a 'hamher 21, elosed `ex ('ept for the entry' pipe 21), for a purpose n'hirh will he poined out presentl):

lt will now he understood thatthis sys teni representsan isolaled plantv iza' iustah lation in a ideni'e, for instani'e. 'l`he lwater diseharge pipe leads from the well, ronvenieutlY near by, to the. dislriluition pipe in the. huilding,`aiul the rompressor.

motor, compressed air tank and rhamher -are suitahly lzoused iu ani'7 eom'enient way.

AS hefore pointed out, pressure is ('onstantly maintained upon the system. lt is therefore necessary to nlaintain a 'ertziu pressure between predeterniined'minimum and niaxinnnn limitu in the zsonipressed ;'.r tank ll, this being done by the. proper starting and stopping of the coinpi'essin' 1.5, either nianualltr or automatieally. lt h-s been my V('.x'perieiu'e that a proper vom' pressed air tank heiugy provided, it is nezessory, in emphrdng a distribution system for ati ordinaryV resideiu'e, for instance, mer-ly to. operate the rompressor intermitteni'ly, sa)r every two or three days, for a .short time, in order to keep the pressure in the ('ompressed air tank within the desirod limit. i

lt will appear as this deseription proi'eeds that, with thevpressure properly mainiained upon the system, everything is at rest so long, as all the outlet faurets of the system are closed, hut 'as soon as one of :hem is opeiued the pulnpiug meeluinisn'i will operate to niaintain `e n1tinuous theI flow u'hii'h iminediatel)v ('(nnmem'es. 'hen the fauret ia again olosed the apparatus eomes' to rest and it will appear that the feed has been dn'ert from the well with the proper -'.lamped between the two plates 75-75,

whieh in turn are (elainped betr-:een a shoulder T6 ou the stem fhy means of a claznping` nut 77'. This stein G extends down and 5 is guided in a spider '(h'. A spring '78' is disposed between the top plate T5 and the valve 54.

The diaphragm Chamber '73 is provided 'with two port.s, the compressed air port Ti) and the exhaust port SU. The eompressed air port Ti) is eonnerted with. the eonu'n'essed air passag'eway .48 by means of the passag'eway 51, eored in the diaphragin ehamber ('asing W and in the head` and the exphere or exhaust passagreway -i-Tvby Imans of the passageway 82, eored in the` diaphragm ehamher ('asilw and the head 21'), as

clearly iilusti'ated in 1' ig. 3.

'The valve meehanism whichrontrols the two ports 71') 'and 8|) and which l term 'the pilot valve for the Huid pressure motor, will now .be deseribed: It'will'be seen that these two parts are ('oaxi'al. and that they are ti'ansversely 'opposite each other. (loneentrie with the axis of these ports. a tube 83 is suitably mounted and this tube has teleseoping therein another tube Si. The tube 83 formed integral with a plug 85, serewed into the diapln'agm 'hainber easing, and a spring SG is disposed between a collar S7 en the innertube 84 and the plug 85, this spring thus tendine' to move theiinner tube out of the outer tube. The inner tube has its ends closed by means of the plugs 88 and. RQ-;and each ol' these plugs rarries a needie i'aive, the ueedle vaive whieh eontrols the port 79 being indieated by the reference ehin'aeter 91. Eaeh of the val'ves within the tube 84-; is provided with a head 92. whirh head liniits the outward iiiovenient of the valve, a spring HI being` disposed lj'etw'een the two heads, as shown. in Fig. 3, In. order that the port 79 may communicate pmperlv with the diaphrag'm ('hamber'T.,the ports U-l are provided in the tube 83. There is thusl lost inotion between the valves U0 and l] whieh permits the overlapping action hereal'ter to be deseribed.

supported from the under side ni" the diaphrzi'gzm ehamber strueture 72 is a ivliuder 95, elosed exrept for the opening: 9G at the top and the open bottom. rToward the lower end oi' the ('.vlinder f'it is intermilly provided with aring 97 whieh provides a valve seat 98 adapted to'be engaged by the bali l'loat valve 99. A brai'ket 100 extends from the diaphrag'in eliamber strueturo T2 and a -lie'llerank leve-r l'Ui is pivoted thereto ,at 102. 'l`he upper arm of vthe bell Crank level' eontaets with ai'eeiproeating pin '1(33 set. in the ('asing of the diaphragm ('hamber and erging the inner tube 84. The lower arni oi`,tlie 'bell eranic level' extends through the :r'peninfr 96 into the 'ylinder 95. and a water haust port 80 is eonneeted with the atmos-z.

-val ves `water weight 'lU-iis in ra provided with a stem .106 extendingf; dowu-.

wardly theret'rom, this steni. being ;guided in a sieeve 107 (carried from the ring 97 by' means of the spider '108.

The water chainbers 50-50 a re provided with the outiet passageways hal-mila), eaeh of which is Controlled by a wheel; vali'e Ilu, between whieh and a eorrespiinding plug 'Ill a spring' U2 is disposed. As wil he deseribed, the water' is 'ori'ed iron; the i'hanibei's :ZU- 50 into the set'ondary water chamber 51, pas mi: these valves, 1d i'ri'im the seeondar)l 'l":u'i'il:er .'31 the watr: ien'r-ed on to the dis' hution system.

The operation of the devivas i'olinws: Let it. he as'nu'uah by rofe: Aini'e to Figi. 3, that the apparatus is now in siu'h roiiilition that lwater is heing t'oreed 'from the ehamher 25. in. this eoudition the water inlet ;r/are elosed and held 'to seat by 1n'e-:sure` 'the water diseharge Yalres 110 are openiid by the disehar'r ng water. rthe ed position and eonseipienty the pilot vali'e eioses the exha ust port HU and opens the `admissimi port 79 of lthe motor. The ('hamber has been partlj,v emptied and the inner tube B4 of the pilctvalve is in its rigrhtlhand position. In this eondition the ('oinpressed air transmitted down from the passageway -t8 through the passagewa 81, port. 7?? :and ports D-t into the diaphragm chan'iher T3, and thus the diaphrag'in is held in, its npperniost position. Yith the (ii'aphragzm in its upper position the exhaust valve, .G-'f is seated upon thea'alve seat 525 to close off the water ('haiuber from exhaust, and the valve (S3 is litted against the spring 71, from its seat 132 to admit ('innpressed air down through the passageway ;617 pa-:saejinvay 4-9 and into the water eliamber. Thus ass'uming that. the water in the d ribiition system has an outlet. the eoi'npri's :d air 'oi'a'es the water out ot' 'the water ehai'nber rofngh the openings T---' in. the pipes -2U then 'upwardly through the pipes 'h-f then through the priniarjx water ('l'iamir'ers 50-51), past the 'ralves MUW-110, and on to the system.

lt will be umlerfitood. as this description goes oiL that the valve SH) is held open and the valve 91 is heid ('losed under the above uditious by the action of the spring:v SG, the iloat or water weight 104 beingr supported bv the water `within the cylinder 95 and thus exertine' no infiuenee to Qvereome the tjen'sion of this Spring. However, as the water-js toreed from the chami: 1225. the level' is ;zraduaiiy lowered to a 'point where the iloat or water weight 10-1 (miles down. This movement is transmitted lzl', the merlianisui' wbieh'i-as been deseribed the tube siantiaii)l those proporiions. sulinn'rged ahout ten feet heiow ilu' level of the u'aier reonirmi for the iiliingz operation. lil the ('upaeifv'oil the disr'lmrg'e and distril'oiion pipesI is lgreatV enough. 'this momentarv 'es sation of pressure \\'ili iu' hardlxy |u'reepiihie at Ilu' fuueeis. partieuhn'y sinee the expulsiou perio'i. assumin; I one or niorofam'ets to hr' open fora eonsiderahle length of tinn': ronsunn-s' pruetifu'iiiy all ihetnne. llowe\er in order that the 'ap in the ilou' may iu' prop'ri \`y iillei in. l provide tin' air Finn nl'eril to whieh ilu' pipe L'il. d't'iivers' from the ihsrhargo pipe lf. ilin'inuh'lj'` uhen the water in the (lisoharg'e pipe iii is under pressnn'. as it is praetie'uillx' all of the time: -a eel'tain amount of water is foreed up into ilu' ehamher 21. 'Thisr :u'iion'eompresses the air in the ehamher and formsl a eushion uhieh is maintaine'i so lon.: as the,

pressure is' not relieve'd. s soon as the pressure is relieved. hou'ever` l \'tile (fessation of the |res:':m'ev in ilu' pump` with :1 faueet open` the air is ;given opportunityY to expand and in doiinr so forees out the water whieh has heeonn' trapped ihereinr'and pro Avides a iiou' from the'faiu'et 'luring the reiilling' period' of the pump. l`i|is eliamher 21 u'ili. of eonrse he. distinguisin'd from a storage tank, sinee all it does to inerease the eapaeity of the system :md provide means' for a. eertain amount of ('ompression lo he released for a 'ery lshort period ahout 1.5 seeonds, at a time. lt will he mnlerstood that this water which is in the ehamher is direetly a. part of the disehargze s'vster'n` heing loeated in effert direeti)v heiween the' well and the faueot.l :lini is eonstant-ly l)ei}1,' r elianged and in this \\'a v a eontinuolr.l iiow from the faueet is insured. l have' found h experi'ment that the. air in the ('hamher 21 is kept properiy replenished hy huhhies of air u'hieh' i'oiiou' the `exipulsion of water from the water ehamher 25 of the pump strueture and that it is :miomatieaiiy r'e` lieved from an exeess of air hy the openin;r of a .faneet. this iatte' :u'iion hein;r instan-` taneous and imperra'ptihle to the .'penin; of

the faueetf. I

lt will ho seen that tln' upper and lower leveis of the. water m the (znamher 25 pos1- tively determine the reversai of the valw's.V

The atmosphere (condition is maintained nn- `tli the upper level reaehes the hotiom of the.

openinlrr 9(3 and the. eompressed air eon'iition is maintiaiin'd. until Athe ion-l dropped to the point of droppilnz tho water weight. valres is meehanieally dependent. upon tho ('oruiit-ions whieh require theirroversul. and there is thus sef'ured a positive and reliahle operation not snhjei't io the defeets pointed out in the earl \I part of this riesf'ription.

It Will be scen that the `reversul of the has In this way the, reversal of the,v

valves is sudden` as has heen ie,''eril:ei` and that theV :n `:nnrenumt is such that at no time is'there even a monu'ntm'y eoxmeetion botu'een the. eompress'ed :air and the atmosphere. lt. will he ('lear that suetion instead of full :'.tmosphere may hf: applied to the pipe t without doparting from the spirit and sope of my invention.

l ha ve endeai'orod to emhorly the features oi my invention in a simple structure in'` -snre motor a valve nn'ehanism operated by said pressure motor to eontrol the eonne(: tion of said ehamher With said passage nys, means eontrolling the eonneetion of to und exhaust from said pressure n1otor,` a 'water ehamher ha\'in; r an inlet at the top and an outlei-at the hotztom. and a level eontrolled 'ieriee in said water ehamher nie; eh'anieally eonneeted with said. controlling means.

Z. Vln a pump. a liquid ehanihc'r having inlet and outlet means, o ev'xauz'at. passage way` a pressure medium passafgeu'ay, a pressure motor, valve, meehanism operatcd by said pressure motor to eontrolthe, eonneetion of said elu-xmher with said ]':1ssa;'\\':r\js, means eontroiiing the connection of pressure to and exhaust from said pressure motor'a water ehamhcr .within said liquid ehamher havinrr :nrinlet at the top and an outlet ai. the hottom, and a. level eontrolled deviee in said water Chamber meohanically eonneeted with said eontrolling means; p

23. ln a pnmpa. liquid ('liamhr having j'nlet :md outlet openings., an exlnmst pin-i-` sageway a. pressure medium pnssagoway,,

pressure means ha ring one side nrranged to ho exposed to tfho pressure medium and its other side exposed to a motor chambor inwingz two ports, one port; an exlmust port'nnd the other :i pressure medium port, valves operated hy said pressure means for elosing said ressure medium port of said liquid ('hamiu'r and openingr said exhaust port of said liquid ehamher, and viec versa, and valves for elosing said pressure medium port of said motor ehamher and opening lsaid exhaust port of said motor Chamber. and viee Yersznand means foroperating said last nan'i'ed valves.

'-l. ln a pump, a liquid ('hamher having inlet and outlet openings` an exhaust passagewuy, a pressure medium passagewayipressure meansl having one side arranged to .mg said pressure Hum pm't af said motor' cmn'lber and pening Saidexhmls part Said -Jznot' Chamber, 'vic Vwsa, mad fiozlt m'fsaxls fm? Operating said ns't named Valve.

5.'111 a pumpT a 'Wzvfsxl hmbm' having inlei; ;md {mflt panngs; anexhaus; part ful' said chzmber, a, compressed air part for said chmnber, pressm' means having ana sid-- 330386, w Hw imeyior Of water Chamber and a er .sde expos m m0- tr uham'ml' tmviug t'w'o ports, 'mnepor'if, an exha'ua. anl the othr cmpz'esed port, valves'og'ex'a by ressm'e means for clnsing Said {fmpmsfied air por; f'said Walther chan 3381"' :md C'penng said exhaus'; port of said chamber, zu'id 'vice mma? :md Valvfef; fm' cmsflg' sa. eompx'esseii ai? port Of *w '7d mo-r' and than 0p8nimg saj exmus; m" said motor Chamber, and vice varsa, :md means for opmtng said last numed 'Jahr-E8. w

6. In a. pump, 2:, Water cmnher haz7ng inlet and {me: penn'gs, zm exhaust port fm'sid elmmbar, a ccmpressed 2m' port fm' said c1141n1181' pressm' means having one side 'posed *w thaiimerim' of said Water Chamber :md its other expssed Flo a m0 tor Chamber ha'qng wg paris, one port zm exhaust port and the other u wmpmsse an' port, 1711.1 Ves pmted by said prsssm'e means 1'01' clusng al cumpressed air part ;mil opening :said exhmwt port of said water chmber :md vice ver-sa, and valvus fm' cnsng' said mmpraf-;sed air port and opening saN oxhmuat port of smd mam? ahamber and vice vv. 3 u fiat 'fm' Operating said ast nnmod vnh'fe9 amd a fiont Chamber for said flmt in :said water' chamber', the 'Water enteri'ng snd 'fim-t :xhsam'her from h'top l:'ml .ezwing ii' fi'om the: bnttom`1` 1:1 za, pump, a 'vmer Chamber having N' matki, opnings, an exhau; port for said 'r aber, n, (',Mx'ipresse ai; pm't fm? said (',mn r, l'n'smre means having Une sid uxpnsml to the .nterif m' said Water ('hnmbul" :md its twr side expmmd m a mtm' vhnmbfl' having' 'w parts, :me port un exlmust pmf't and the Other a. ompl'essm air: port, va] ".':'.H'0pe1'ater`i by .'fsa pgassm'e. .memg

I S In a. pumg, a water i .mbm' hwing insaiz Chamber? a cmnpressac air paw; fm' said chambezg pressure' means having' 0118 exposed 'to the interia? :said Water chamber ;md its other side el'zpufied *w mooz' chamber having two ports, one port an exha-usz' pzrt :md the (Yher 1:zm"q`refissrsd air port, valves operatc hy said pressm'e .means 'fm' Closing fiaid cn'zpmfised air port ;1116i 01.101 ing said 'elchaust pa z 'f 5A." wzi-81' chan. ber, :md vice wersa, :md Vl'vcs said cnmpl'essez. air pin-fu :Lud Qpvning said.

axhaust part M said mowi' chahbm' mld' having two parts? Une port zm 'exhdust pc'rt Ham, in

.img said exhaui-:t part nf Said mumr chamter Chamber, and ,vice Versa, and valves for elosing said eompressed air port and openng said exhaust port of said motor cham-V her, and vice versa, and means for operating said last named valves, said vpressure means Operating to close the first named exhaust port and open the vfirst named compressed air port when the last named charnher is exposed to eoinpressed air, and to reverse the action When Said last named chamber is e'xposed to the e-Xhaustc 12. In combination, a sinlle cylinder' pump, a source of compresse air, an air spring connected to the pump and a closed faucet Controlled delivery system connected to the pump and tank,'said pump eompris' ing valves for liquid, a; lmain air valve meehanism; a pressure motor operated i'n one -direotion by compressed air independently of, the main ,air valve inerhanism, means Controlled by low level of the liquid in the'pump to mase the motor to shirt the main air valve to exhaust position and means rontrolled by high level rondition of liquid .in the pump to cause the motor to shil't the main air valve to close the exhaust.

13. ln combination, a single cylinder pump, a sourre ot' ',oinpressed air, an air spring ('onner'tml to the pump and a closed faueet ',ontrolled delivery system ronnerted to the pump and air spring, said pump ('omprising valves for liquid, a main air valve inevhaiiism, a pressure motor voperated in onel direetion by eompressed air independent of th(` main air valve merhanism, means rontrolled by low level of liquid in the pump lo ('ause the motor to shi'f't the main air valvrI to.'ut oil' furthrr adlnission of V',nnpressel air and means rontrolledi by lngh level of liquid in ilu' pump to rause the motor to slnl't the valve to re-admit r'ompressed air.

ing liquid inlet Eand diseharge valves, a ,sourre of rompressed air, an admission valve of' lhe puppet type adapfed to be held against ils seat b v the pressure of the rompressed airv` guiding means for said valve, a separate .stem for said valve, a fluid pres-` sure motor for opening tlul admission valve against the pressure of fhe rompressed air,

'said motor having a flexiblel diaphragm, a

separate motor strm. means l'or guiding the motor ,stom into rontart \v|th .sald valve stem and level rontrolled means responsive to filling of the pump Chamber with liquid i'or admitting pressure to the pressure'motor.

15. In combination, a pump ehamber ha ving valves for liquid, a sourre of' mot'ive fluid, an. admission valve, spring ilu-.ans4

tending to close said 'alve a pressure motor in the pump ('hamber. a lost motion ron nevtion between said motor and .said valve for opening the. valve. a fluid pressure passageway for thel motor iudependent of the said admission valve. and a high level von'- trolled valve 'for adniilting pressure from `said ,'iassage'u'av to the motor to open the of fluid pressure to the motor.

17. In combination, a pumping ('hamber having Valves forliquid, a 'souree of' motive fluid, an` admission valve, a separate exhaust valve, a pressure motor having a lost mol ion connection with said valves xvherelrv the admission valve is 'losed vbefore the exhaust' valve opened, and ivherohy the exhaust' valve is elosed before the admission valve is opened, and level eontrolh'd mennsgoverning the appliratirni of pressure to said motor to operate the valvt's in arrordam'o with level ronditions.

18. In rrnnhinationv` a pump (-hamber having valves for liquid, air :uhnission and ex haust rvalves adapted to be held to lheir sents by pressure of the mofive fluid. and a pressure motor having an element movable alternutely in opposite dirertions by fluid pressure for opening said valves altermxtely.

19. Tn eombination, a pump ohamber having valves for liquid, air admis'sion and ex; haust valves adupted to be held to their seats by pressure of' the .motive fluid, .and a. pressure motor having an element movable alternately in opposite dirertions l v fluid pressure for opening said valves altrrnulely,

and a. lost motion ('onuertion between the movable elenjient und said valv's l'or applyiug the exhaust valve to seat before the| adinission valv'` opens and for applying the ndinission valve to seat beforethe exhaust valve opens. I

2d. ln ('omhination, a pump ('haniber having valves for liquid. a soul'rel of ('oinpressed air. an e\haust valve adapted'to be applied to its. seat when water has filled the pump vhalnber and to be held to its seat b v pressure, a pressure' motor having a pressure element suhjert on one side to the pressure Within the pump ('hamber and on the other sourr'i', and level eontrolled means governfluid, u. main vaiw fr the pumpim'f r, her, :i pressur' mat-81' -Or Operating 111117111 valve, smd motor having ;z rmwabie the' exhaiust i. aimnp, :z nwvi'ibie motul* msmbel? wm a, miu; admlsslon 'valve iiyone, side :1? the motul' nmm'ber, level cnnype uici wifi-i pz'esura.

tmiled means gmf'ari'ng piit valve, iii 8, pump, a movahie prssu apel said main valve cvveming hbiie appiicaitimi mam? 1m v Wml-'ve cunng 01 pressure find exhaiistpi'essure mi the fi'vif`3 zi in: ii ,fmimimi Wiwa iying* in 'Hm 31? other :ide of said matmmember.

a main ezhnusi; valve., a pressure moim' having a mmfabie membar fm' upei'azing 'him main valve, 'L1 jpiiot mimissin vaiv' zmai pli'. exhnust 'vaive fm' the nwtm'., *aha ilmiii valve giweming' the pressure 011 (ma side the mat-m' and the pi'l *'.fzii've gvmfi -he pressure 011 the (Miller side of 1:1

n zi pump, zi ma i admi ;ion Wim, aiwt- Vave, ;z pi sima mfLoi' fmfir" ing' zi mpmbie "ici'nbair ut Upmting f i. main Valve, piiuft mimissmn vzsie ;ma pilot xhmifat .valve 33118 m In :i'pmnp :main admissim valve., mtnr having :1 mombie member? a, piiet Valve puvm'ning 'the admissimi of flnd'to mm side (v thamotor iznbai; ta Cause the main mimission valve to open unii adinit pr'nssni'u 'm the other side (if si mamy bear, a main exhzmst vaii'c,.:i pilot xhauast valve fm' the 'motor govezfninz, 'the exfm'us of pi'essul'c mi said mm side O' *Lim moimi* ugxse the 11101101' to (ipan the main exlmust valve and eXhauS pressure 011 the Other sifi'f: of the moto? 121011118813 211161 level efn''ruid mafius gu'wei'ning the operation of sait valves. v

In a pump, a i'nuvfibie motor. m-mi'm? 4having a staw., a, main admission Valve yi pilot Cartiii of pY'essm-a 'to fsbe b'ody, said box havinga uiding member in 34. In a pump, a pump Chamber having vvalves for liquid, a main air valve mecha- -pressed air to and from the Chamber, a

nism for the admission and exhaust of commotor -for Operating said main-valve mechanism, a pilotvalve governing the opera- ;tion of 'the motor, a float controlling said pilot valve and'a water box inclosing said I float, said water box'having an openlng at I surroundin theftop for the admission of Water and an' outlet a't the bottom for the disoharge of water from thebox. w

135. Ina pneumatio pump, a controlling float for high and low level, a Water box said' float, said water box having an opening at the top for the admission of Water and a check valved outlet at the boto tom for the discharge of water. i'

36.' In a pneumatlc pump,"a member for high and low, level Controlof the valve mechanism of the pump.'-Comprising an elongated body having a lever connected at its upper end, a Water boxisurrounding said the lower end for the bo y, said box having an admission opening 'at the top and a. dis- Charge outlet at the bottom, said discharge outlet being Controlled by' a Check valve.

.37 In av pneumatic pump, main air valve mechanism for adlnitting Compressed air to and exhausting theV same from the pump, a 'pressuremotor'for Operating said valve meehanisln,said'pressure motor having an admissiofifpassageway and an exha-ust passagewa'y Ilot'tvalve members for. said pasvP o sageway-.aidpilpt valve members being connected .together by a lost motion Connection cmprising .a spring l'tending to hold Vthe pilot ralvemembeis in position to close Said passdgeways, a hollow sleeve inclosing .said Springs .and'parts of the valves, and a float for moving said sleeve.

38. In a,pump, a main valve Operating and exhaust of motive fluid to said ch amh" -Iil'yglame thisflOthday of November, 1919.

said passageways having ports lying in line opposite each other, a pilot valve member having two separate valve plugs Coperating With said ports', spring means tending to 'force both of the plugs into the ports vto close ofl both ports simultaneously, a Cage for said plugs and said spring, and a fioat for shifting said' Cage. v

39. In a pneumatiepump, a main valve' shifting motor Comprising a movable member and a motor Chamber, pssageways for admission and exhaust of motive fluid to and from said motor Chamber, said assageways havingports controlling the a ission vand exhaust of motive fluid, said pol-'ts lying axially in line With each other, a valve member for each port, said valve members being connected together by a lost motion Connection permitting the application of said valves yieldingly to the port and level Controlled means for shiftingsaid valves to' 'w govern operation of the motor. 'St

40. Inalvtpneumatfl.: pump, a main valve shifting motor 'comprising a mov'able member and a'motor Chamber,'admission and way, level Controlled` valve' means governing said admissii -and exhaust passageways of the motorfsaid motor member being adapted i to be moved alternately in opposite direc- 1 0- tions by flui'd ressure. 42. Inv combmation, a pump Chamber havingv valves for liquid, a ,source of motive fluid, a main admission valve ofthe puppet type adapted to be held to 4seat by the pres- 10a sure of the motive 'fluid, a fluid pressure movtor ,Controlledv by high level for opening the adrnission 'valve against pressure, an

exhaust, :valve ,also operatplfby :said motor ,}said motor havin ya'flot motion Con- 1,10

nection with said admission'ivalve to permit the admissionvalve'toibe closed before theV ,exhiust Vvalve is ,opened lmotorcomprisl'ng a movable member and pressure Chamber, passageways for admission i :F111 witnessflhereof 'I help'llnto Subscribe 7 118. I S3 AIKM 

